Sanitary rendering and drying apparatus.



R. T. G. LIBSINGER. SANITARY RENDERING AND DHYING APPARATUS.

APPLICATION FILED NOV. 3, 1011,

1 311010 Patented July 2, 1912.

v v Ns y Inventor.

Attorneys centrical VyTo a/ZZ whom 'Lt may concern.'

UNITED OFFICE.

nUnoLI-H T. eininsrrrnagorBUFFALO, NEW YORK.

sANIrAItY RENDERING AND DRYING APPARATUS.

Be it known that I, RUDOLIHT. Gr.

SINGER, a citizenvof the United States",l resid-4 Iing at- Buffalo, in the county of yErle and State of New York, have invented a new land useful Sanitaryl Rendering and Drying A p-. paratus, of which the. following is aspecitcation.

. l The presentinvention relates to improvements 'in sanitary' rendering and drying apparatus, the'primary object of the invention being the provision of an improved agltator with a s ecial design of arms disposed conlywithin' the bottom of the retort and adapted to"be`rotated"to agitate or break u'p the mass of material and thefat cells, the samealso agitating the liquid V or wetmaterial before the oleaginous matterhas -been to the top rendered and drawny from the retort, this agitating causing the oleaginous matter to float where it may be drawn oif or rendered.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in theprecise embodiment of invention herein disclosed can be made withf in the scope of' whatis claimed without departing from the spirit of the invention.

In the drawings-Figure 1 is a front ele vation of the complete apparatus, the lower portion of the steam jacket and retort and the vupper portion of the retort being broken| away and shown in section. Flg. 2 1s a section takenon line 2--2 of Fig. 1.

Referring to the drawings, the numeral 1 designates the main shell` of the apparatus which is coml osed of a single shell of steel, the lower en of which is surrounded by a steel steam jacket 2, 'the upper end of the shell 1 being closed by a single disk or head 3,"while the lower 'end or bottom is a double steel head 4: composed of t-wodisks as shown .in Fig. 1 Formed inthe upper head ofthe shell 1 is t-he upstanding ringcor flange 5 provided with the 'removable cap or c'lgsure 5, whereby the 'z-retort or/shell 1 may be loaded. Connected to the frame 6 inthe lower portion of the shell 1 and disposed to beoperable exteriorly thereof, is a closure or door 6', t'permit .the unloading of the Vdried material from the retort or lshell 1;

l Connected to the shell' 1 inl vertical alinevent the adherence thereto of any ment, and arranged at desired distances from the bottom thereof to a point above the steam' "jacket 2, are threedraw-oi' valves 7,'while v'connected to and in communication .with 'the lower end ofthe shell 1, is a steam trap 8 for taking care of the condensation in the lower jacket formed bythe double bottom and in the steam jacket 2 of the apparatus. v

Leading from the top of the retort or shell l, is a pipe 9 provided with a safety valve 9 `all of usual construction. Disposed below the shell 1' concentrically thereof, is a step bearing 18 povided with a specification ftettersratent. PatentedJu1y2,1912. Appneauqn med Neve'mber a, 15911;? seriai'No. 658,443.

copper bronze lining, for the reception of the. i

lower end of the vertical shaft 17, to which Said shaft being properly journaled in vthev .hanger-15 and pillow block 16.1By this .is keyed intermediate v of its ends belowltle l means the vertical shaft 17 isl properly.'ro#-l` tated and as-the upper end thereof projects through the stuiing box 19 into'andfth'rough the double bottom 4 ofthe shelltl, .therupper end thereof is rotated within of the' jacket or shell 1.

thflowe'rkend Keyed. to and rotatable upon y endv of the shaft 17, .is an agitator'e11,4

osed 'of two curved arms, as clearly shown? in Fig. ,2, saidarms having disposed there,- On a plurality of projections 12 having the reduced terminals 1 2', so disposed that when f the agitator is rotated in the direction of the arrow Fig. 2, that the said arms will properly pass through the mixture, the arm 12 upon the extreme end riding v,upon

`or near the interior surface of the jacketA 1 so as\ to properly scrape the same and preofthe material to be rendered and dried. As clearly shown the terminals 12 areof lesser length than the terminals 12, but are of sufficient height to properly agitate the material within the retort or shell, and especially the portion below the upper edge of the steam. jacket 2.

It will be noted that the outer ends gf the arms oftheagitator 11, terminate at a point within the wall of the tank to provide 'a space therebetween for the passage of ob-'i stacles, such -as pieces of iron, brick, etc., `that may be dumped with the garbage into t the reservoir. By constructing the agitator as shown and with the arms 12" curved outwardly and up toward the wall .f the tank,

such obstacles may be passed between the tator arms extend toa point very close to the wallof the tank or reservoir, `SlllCh ob-.

stacles will render the device inoperative and" make 1t necessary to remove the material from the tank or reservoir before the operation of desicc'ation can be carried out. From the foregoing description taken in connection with the drawings, the operation.`

of the apparatus is readily understood, but briefly stated it is as follows: The closure 5 is opened and the lmaterial to be rendered and dried or desiccated, i s placed into the shell or yretort 1,' and steam is then introduced through the pipes 22 and 28, at four different points about the said retort or shell 1. i

During the operation of the boiling and final removal of the vapor from the apparatus, the material is continually agitated by the agitator disposed at the lower portion and concentrically of the/shell 1, and when saidmaterial has been dried or desic-V cated to the proper degree, the lower door 6 is opened and by t-he operation' the agitator, the material within the retort 1 is automatically discharged through the opening 6 controlled by the door 6.

It is evident by providing' an apparatus of the design herein set forth, that animal or vegetable matter may be properly treated so that the grease or oleaginous'm-atter may be removed therefrom so that the4 residue may be dried or desiccatedto the proper degree to be used for various purposes, and further that bythe novel construction and formation of the agitator within the lower end'o'f'the jacket 1 that any pieces of metal that may be Acontained Within the material will be moved without being wedged against the walls of the jacket to injure the same or the agitator, theipeculiar angle of deflect-ion ofthe arms carried by the agitator preventing such obstructions from stopping the agitator or causing any injury to the apparatus.

What is claimed is:

A rendering and desiccating apparatus, havinga reservoir, a shaft mounted concentrically at the bottom thereof, an agitator for the contents carried upon the upper end of the shaft and within the reservoir, the ends of said agitator terminating at a point away from the wall of the reservoir to permit the passage Vof obstacles therebetween, a pluralitybf stirring arms carried by and projecting upwardly from said agitator, and one longarmconnected to one end of the agitator andl having its terminal curved outwardly and upwardly above the agitator 

